Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “beam”

beam

noun [C] uk   /biːm/ us  

beam noun [C] (LINE)

B2 a line of light that shines from a bright object: We could just pick out the path in the weak beam of the flashlight. The rabbit stopped, mesmerized by the beam of the car's headlights.
See also
a line of radiation or particles flowing in one direction: a laser beam an electron beam

beam noun [C] (WOOD)

a long, thick piece of wood, metal, or concrete, especially used to support weight in a building or other structure: The sitting room had exposed wooden beams. the beam in the sport of women's gymnastics, a wooden bar on which the competitors balance and perform movements

beam

verb uk   /biːm/ us  

beam verb (SMILE)

[I] to smile with obvious pleasure: She beamed with delight/pleasure at his remarks. The child beamed at his teacher as he received the award. [+ speech] "I'm so pleased to see you," he beamed (= said as he smiled).

beam verb (SEND OUT)

[I or T] to send out a beam of light, an electrical or radio signal, etc.: The sun beamed (= shone brightly) down on the boat as it drifted along. The concert was beamed (= broadcast) by satellite all over the world.
(Definition of beam from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of beam?
Add Cambridge dictionaries to your browser to your website

Definitions of “beam” in other dictionaries

Word of the Day

maiden

a girl or young woman

Word of the Day

Countability – grammar codes

by Dom Glennon​​,
November 26, 2014
Advices and informations Have you ever noticed strange codes in square brackets on entries in Cambridge Dictionaries Online and wondered what they mean? These are grammar codes, giving you a brief summary of how that word behaves grammatically. More information can be obtained by hovering your cursor over the code, and there’s

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More